METHOD OF ACTIVATION OF COBALT CATALYST OF FISCHER-TROPSCH SYNTHESIS Russian patent published in 2012 - IPC B01J23/75 B01J21/04 B01J38/10 B01J37/18 C07C1/04 

FIELD: process engineering.

SUBSTANCE: invention relates to oil chemistry, coal chemistry and gas chemistry, in particular, to Fischer-Tropsch synthesis, namely, to activation of cobalt catalyst. Proposed method comprises catalyst activation directly in Fischer-Tropsch synthesis with immobile catalyst layer by heating catalyst on forcing hydrogen-containing gas above catalyst precursor. Note here that catalyst is heated in several steps on increasing temperature in stepwise manner. Note also said, at first step, temperature is increased at the rate of 0.5-2°C/min to 180-200°C and kept thereat unless stable carbon monoxide conversion and liquid hydrocarbon and methane selectivity characteristics are obtained. Note that said characteristics are taken to be stable is their relative difference does not exceed 10 relative percent. Then, temperature is increased by 9-12°C at the rate of 0.1-2°C/min to carbon monoxide conversion by 50-60%. Thereafter, temperature is increased by 4-6°C at the rate of 0.1-2°C/min and maintained till 60-80%-conversion of carbon monoxide.

EFFECT: ruling out separate activation step and activation at higher temperatures.

4 cl, 1 tbl, 9 ex